CN207351040U - Refrigerator - Google Patents

Abstract

The utility model provides a refrigerator, which comprises a box body, an evaporator and an air duct assembly. The box is divided into a freezer and a refrigerator, the freezer is provided with a freezer air inlet and a freezer return air, and the freezer is provided with a freezer air inlet and a freezer return air; a cavity is also formed in the box, and the evaporator is arranged in the cavity; The air duct assembly includes a refrigerating fan, a refrigerating return air duct, a refrigerating fan and a refrigerating return air duct. The gas refrigerated by the evaporator enters the freezing chamber through the refrigerating air inlet under the action of the refrigerating fan, and the refrigerating return air duct is connected to the refrigerating unit. Air return port and evaporator, the gas in the refrigerating return air channel enters the refrigerating room through the refrigerating air inlet under the action of the refrigerating fan, and the refrigerating return air channel is connected with the refrigerating return air port and sends the gas in the refrigerating room back to the chamber body. The utility model utilizes the cold air in the freezing chamber of the refrigerator to cool down the refrigerating chamber, reduces the heat load and power consumption of the whole machine, and is beneficial to energy saving of the refrigerator.

Description

refrigerator

technical field

The utility model relates to the field of household appliances, in particular to a refrigerator.

Background technique

Refrigerator is common a kind of household appliance, is provided with refrigerator and freezer. The freezer is used to freeze food, and the preservation time is relatively long, and the temperature of the room is generally around minus 20 degrees Celsius. The refrigerator is used to keep food fresh for a relatively short period of time, and the room temperature is generally between 0-10 degrees Celsius. Among them, the existing refrigerator products generally use the evaporator to supply air to the refrigerator compartment and the freezer compartment through the air duct for cooling, so that the heat load of the evaporator is large, and the power consumption of the whole machine is also large; Evaporators are respectively arranged in the chamber or the freezer chamber to cool the food by natural convection. In this way, the heat transfer efficiency of the evaporator is low, and the power consumption of the whole machine is also large, which cannot effectively save energy.

Therefore, it is necessary to provide a new refrigerator to solve the above technical problems.

Utility model content

The main purpose of the utility model is to provide a refrigerator, aiming at solving the problem that refrigerators in the prior art cannot effectively save energy.

In order to achieve the above object, the refrigerator proposed by the utility model includes:

A box body, wherein a freezer compartment and a refrigerator compartment are separated and formed, the freezer compartment is provided with a freezer air inlet and a freezer return air outlet, and the refrigerator compartment is provided with a refrigerator air inlet and a refrigerator return air outlet;

An evaporator, a cavity is also formed in the box, and the evaporator is arranged in the cavity;

An air duct assembly, the air duct assembly includes a refrigerating fan, a refrigerating return air duct, a refrigerating fan, and a refrigerating return air duct, the gas refrigerated by the evaporator passes through the refrigerating air duct under the action of the refrigerating fan The tuyere enters the freezing chamber, the refrigerating return air duct connects the refrigerating return air opening and the cavity, and the gas in the refrigerating return air duct enters through the refrigerating air inlet under the action of the refrigerating fan In the refrigerating chamber, the refrigerating return air duct is connected to the refrigerating return air outlet and returns the air in the refrigerating chamber to the cavity.

Preferably, the refrigerating return air duct is also connected to the freezing return air duct, so as to send the air in the refrigerating chamber back to the cavity through the freezing return air duct.

Preferably, the air duct assembly further includes a refrigerated air intake duct, and the refrigerated air intake duct connects the cavity and the refrigerated air inlet.

Preferably, the air duct assembly further includes a refrigerating air intake duct, and the refrigerating air intake duct connects the refrigerating return air duct and the refrigerating air inlet.

Preferably, the connection between the refrigerating return air duct and the freezing return air duct is the return air duct, and the connection between the refrigerating air intake duct and the freezing return air duct is the air inlet; In the air supply direction of the refrigerated return air duct, the return air point is located downstream of the air intake point.

Preferably, the refrigerating fan is arranged in the refrigerating air intake duct, the refrigerating return air duct or in the refrigerating room.

Preferably, the refrigerating fan is arranged in the refrigerating air inlet duct or in the refrigerating chamber.

Preferably, the refrigerated air inlet is provided with a damper for controlling gas flow.

Preferably, the freezing return air outlet is located below the freezing chamber.

Preferably, the number of the freezing air inlet, the freezing return air outlet, the refrigeration air inlet and the refrigeration return air outlet, and the number of the freezing fan and the refrigeration fan are at least one.

In the technical solution of the utility model, the evaporator only needs to directly supply cooling to the freezing chamber, which reduces the heat load of the evaporator and the power consumption of the whole machine to a certain extent. Secondly, the cold air in the freezer is collected at the freezer return air outlet, and the cold air in the freezer is sent to the freezer through the freezer return air duct to cool the food in the freezer. There is no need for an evaporator to increase the cooling capacity for the freezer. The compressor works The duration is shortened, and the operation rate is reduced, and the power consumption is reduced. Moreover, the cold air at the refrigerated return air outlet returns to the cavity through the refrigerated return air duct, and can be fully mixed with the airflow sent to the cavity by the refrigerated return air duct and then exchanged heat by the evaporator, which is beneficial to improve the heat transfer of the evaporator Efficiency, which is convenient for refrigerators to save energy.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description These are only some embodiments of the present utility model, and those skilled in the art can also obtain other drawings according to the structures shown in these drawings without creative work.

Fig. 1 is a schematic structural view of a refrigerator according to an embodiment of the present invention;

Fig. 2 is a schematic structural view of a refrigerator according to another embodiment of the present invention;

Fig. 3 is a schematic diagram of the air flow of the refrigerator of the present invention;

Fig. 4 is a schematic diagram of another airflow direction of the refrigerator of the present invention.

Explanation of reference numbers:

label name label name 100 refrigerator 151 Refrigeration fan 110 cabinet 152 Refrigerated return air duct 120 Freezer 153 Refrigeration fan 121 Freezer air inlet 154 Refrigerated return air duct 122 Refrigerated air outlet 155 Freezing air intake duct 130 cold room 156 Refrigerated air intake duct 131 Refrigerated air inlet 157 Inlet 132 Refrigerated return air vent 158 return air 140 Evaporator 160 water tray 150 Air duct components 170 throttle

The realization of the purpose of the utility model, functional characteristics and advantages will be further described in conjunction with the embodiments and with reference to the accompanying drawings.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present utility model are only used to explain the relationship between the components in a certain posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

In addition, in the present application, descriptions such as "first", "second" and so on are used for description purposes only, and should not be understood as indicating or implying their relative importance or implicitly indicating the quantity of indicated technical features. Thus, the features defined as "first" and "second" may explicitly or implicitly include at least one of these features. In the description of the present utility model, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

Moreover, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the realization of those skilled in the art. When the combination of technical solutions is contradictory or cannot be realized, it should be considered that the technical solutions Combination does not exist, nor is it within the scope of protection required by the utility model.

The utility model provides a refrigerator, aiming at solving the problem that the refrigerator cannot effectively save energy.

As shown in FIG. 1 and FIG. 2 , a refrigerator 100 provided by the present invention includes a box body 110 , an evaporator 140 and an air duct assembly 150 . A freezer compartment 120 and a refrigerator compartment 130 are separated and formed in the box body 110. In FIG. 1, it is a side-by-side refrigerator. The freezer compartment 120 and the refrigerator compartment 130 are preferably arranged side by side and separated by an intermediate partition. In FIG. 2, it is a double-door refrigerator. In the refrigerator, the refrigerating compartment 130 is disposed above the freezing compartment 120 . Wherein, the freezer compartment 120 is provided with a freezer air inlet 121 and a freezer return air outlet 122 , and the refrigerator compartment 130 is provided with a refrigerator air inlet 131 and a freezer return air outlet 132 . A cavity is formed in the box body 110 , and the evaporator 140 is disposed in the cavity of the box body 110 , and is preferentially set opposite to the freezer compartment 120 and located outside the freezer compartment 120 . The air duct assembly 150 includes a refrigerating fan 151 , a refrigerating return air duct 152 , a refrigerating fan 153 and a refrigerating return air duct 154 . The gas refrigerated by the evaporator 140 enters the freezer compartment 120 through the freezer air inlet 121 under the action of the freezer fan 151; The air return port 122 enters the refrigerated return air duct 152 and returns to the cavity through the refrigerated return air duct 152, and performs heat exchange and refrigeration through the evaporator 140; The air inlet 131 enters the refrigerating room 130 , and the refrigerating return air duct 154 is connected to the refrigerating return air opening 132 and sends the air in the refrigerating room 130 back to the cavity, and passes through the evaporator 140 for heat exchange and cooling.

The refrigerator 100 provided by the utility model, as shown in the gas direction E in Fig. 3, the low-temperature and low-pressure refrigerant in the evaporator 140 enters the compressor after absorbing the heat of the gas outside the evaporator 140, and the gas and the refrigeration in the evaporator 140 The agent performs heat exchange, thereby realizing the cooling function of the evaporator 140 . The refrigerated gas enters the freezer compartment 120 through the freezer air inlet 121 under the action of the freezer fan 151 to cool down the food in the freezer compartment 120 . The cold air in the freezing chamber 120 is collected at the freezing return air outlet 122 and enters the freezing return air duct 152 and returns to the cavity, where it is exchanged and refrigerated by the evaporator 140 . At the same time, the temperature of the cold air collected by the freezing air return port 122 is sufficient to cool down the food in the refrigerator compartment 130. When the cold air has not yet reached the cavity, the cold air in the freezing return air duct is sent to the refrigerator compartment 130 under the action of the refrigeration fan 153 for the refrigerator compartment. The food in 130 cools down; then the gas in the refrigerating chamber 130 is collected through the refrigerating return air outlet 132 , and returns to the cavity through the refrigerating return air duct 154 to exchange heat through the evaporator 140 . The utility model utilizes the refrigerated return air of the freezer 120 to cool down the food in the freezer 130 , and does not need the evaporator 140 to increase the cooling capacity for the freezer 130 , which is beneficial to improve the energy-saving effect of the refrigerator 100 .

Further, in a preferred embodiment, the refrigerating return air duct 154 is also connected to the freezing return air duct 152 , and sends the air in the refrigerating chamber 130 back to the evaporator 140 through the freezing return air duct 152 . The refrigerating room 130 return air gas in the refrigerating return air duct 154 and the freezing room 120 return air air in the freezing return air duct 152 are fully mixed in the freezing return air duct 152, and heat is transferred to each other, so that the air returned to the cavity The temperature balance of the gas is beneficial to improve the heat exchange efficiency of the evaporator 140 . Referring to Fig. 4, at this time, the route of the refrigerant gas of the refrigerator 100 towards E is as follows: the low-temperature and low-pressure refrigerant in the evaporator 140 enters the compressor after absorbing the heat of the gas returned by the refrigerated return air duct 152, and the refrigerant and the gas Carry out heat exchange to realize the refrigeration of the return air; the gas after refrigeration enters the freezer 120 through the freezer air inlet 121 under the action of the freezer fan 151, and cools down the food in the freezer 120; it is collected at the freezer return air outlet 122 The cold air in the freezer compartment 120 enters the freezer return air duct 152 and returns to the cavity and passes through the evaporator 140 for heat exchange and cooling. At the same time, the temperature of the cold air collected by the freezing air return port 122 is sufficient to cool down the food in the refrigerator compartment 130. When it has not yet reached the cavity, the cold air in the freezing return air duct is sent to the refrigerator compartment 130 to the refrigerator compartment 130 under the action of the refrigeration fan 153. Then the gas in the refrigerating chamber 130 is collected through the refrigerating return air outlet 132, and enters the freezing return air duct 152 through the refrigerating return air duct 154 and then mixes and exchanges heat with the gas in the freezing return air duct 152, and finally Return to the cavity to perform heat exchange and refrigeration through the evaporator 140, so as to improve the heat exchange efficiency of the evaporator 140.

Furthermore, in the above embodiment, the air duct assembly 150 further includes a freezing air intake duct 155 and a refrigerating air intake duct 156 . The freezing air inlet duct 155 connects the cavity and the freezing air inlet 121, and the gas refrigerated by the evaporator 140 reaches the freezing air inlet 121 through the freezing air inlet duct 155, and enters the freezing chamber 120 through the freezing air inlet 121 to form the freezing chamber 120. cooling of the food; the refrigerated air inlet duct 156 is connected to the refrigerated return air duct 152 and the refrigerated air inlet 131, the gas in the refrigerated return air duct 152 reaches the refrigerated air inlet 131 through the refrigerated air inlet 156, and enters through the refrigerated air inlet 131 The refrigerator compartment 130 cools down the food in the refrigerator compartment 130 .

It should be noted that the junction of the refrigerating return air duct 154 and the freezing return air duct 152 is the return air duct 158, and the junction of the refrigeration inlet duct 156 and the freezing return air duct 152 is the air inlet 157; In the air supply direction of the refrigerated return air duct, the return air point 158 is located downstream of the air intake point 157 . Referring to Fig. 4 (the arrow shows the direction of air flow E), the return air point 158 is located downstream of the air intake point 157, which means along the air flow direction E in the refrigerated return air duct 152, and the air flow first flows through the refrigerated return air duct 152 The air inlet 157 then flows through the return air 158 of the refrigerated return air duct 152, and finally returns to the cavity.

In addition, it should be explained that the refrigerating fan 153 can be arranged in the refrigerating air intake duct 156, and under the suction of the refrigerating fan 153, the gas in the refrigerating return air duct 152 enters the refrigerating air intake duct from the air inlet 157. 156 and advance towards the cold room direction, reaching the cold room to cool down the food. In addition, the refrigerating fan 153 can also be arranged in the refrigerating room 130 and the refrigerating return air duct 154. Under the suction of the refrigerating fan 153, the gas in the refrigerating returning air duct 152 enters the refrigerating room 130 and the refrigerating returning air duct 154. Inside, due to the suction effect of the refrigerating fan, the gas pressure in the cavity is relatively small, and the gas in the refrigerating return air duct 154 will be sent back into the cavity. At the same time, the freezing fan 151 may be disposed in the freezing air duct 155 or in the freezing chamber 120 . Under the suction effect of the refrigeration fan 151 , the gas refrigerated by the heat exchange of the evaporator enters into the freezer compartment 120 through the freezer air duct 155 and the freezer air inlet 121 to cool down the food in the freezer compartment 120 . Wherein, in a preferred embodiment, the refrigerating fan 151 is arranged at the refrigerating air inlet 121 , and the refrigerating fan 153 is arranged at the refrigerating air inlet 131 .

In other embodiments, the number of the freezing air inlet 121, the freezing return air outlet 122, the refrigeration air inlet 131 and the refrigeration return air outlet 132 as well as the number of the refrigeration fan 151 and the refrigeration fan 153 can be one or more. , so as to better realize the cooling function of the refrigerator 100 and achieve a better cooling effect.

In a preferred embodiment, referring to FIG. 1 , the refrigerated air inlet 131 is further provided with a damper 170 for controlling air flow, and the temperature in the refrigerating chamber 130 is adjusted by controlling the opening and closing of the damper 170 . The damper 170 is preferably an electric damper, and the electric damper is electrically connected with the temperature sensor in the refrigerator compartment 130, and the opening size of the electric damper is controlled by sensing the temperature change in the refrigerator compartment 130 in real time, so as to adjust the air flow from the refrigerated return air duct 152 into the refrigerator compartment. The size of the cold air volume of 130 prevents the food in the refrigerating chamber 130 from being frozen by the refrigerated return air gas.

It should be further noted that, referring to Fig. 1 and Fig. 2, the refrigerated return air outlet 122 is located below the refrigerated compartment 120, and the refrigerated gas passes through the compartment of the refrigerated compartment 120 to cool down the food in the refrigerated compartment 120, sinks under the action of gravity, and freezes. The air return port 122 located below the freezing chamber 120 is more conducive to the recovery of cold air in the freezing chamber 120 . In addition, a water receiving tray 160 is provided in the box body 110 below the evaporator 140 to collect the condensed water generated by the evaporator 140. A drain pipe is also connected to the water receiving tray 160, and the drain pipe is connected to the box body 110. The exterior of the refrigerator 100 is used to drain the condensed water out of the refrigerator 100. Furthermore, the water receiving tray 160 is preferably disposed in the cavity.

The above is only a preferred embodiment of the utility model, and does not limit the patent scope of the utility model. Under the utility model concept of the utility model, the equivalent structural transformation made by using the specification of the utility model and the contents of the accompanying drawings, Or directly/indirectly used in other related technical fields are all included in the patent protection scope of the present utility model.

Claims (10)

1. A refrigerator, characterized in that the refrigerator comprises: A box body, wherein a freezer compartment and a refrigerator compartment are separated and formed, the freezer compartment is provided with a freezer air inlet and a freezer return air outlet, and the refrigerator compartment is provided with a refrigerator air inlet and a refrigerator return air outlet; An evaporator, a cavity is also formed in the box, and the evaporator is arranged in the cavity; An air duct assembly, the air duct assembly includes a refrigerating fan, a refrigerating return air duct, a refrigerating fan, and a refrigerating return air duct, the gas refrigerated by the evaporator passes through the refrigerating air duct under the action of the refrigerating fan The tuyere enters the freezing chamber, the refrigerating return air duct connects the refrigerating return air opening and the cavity, and the gas in the refrigerating return air duct enters through the refrigerating air inlet under the action of the refrigerating fan In the refrigerating chamber, the refrigerating return air duct is connected to the refrigerating return air outlet and returns the air in the refrigerating chamber to the cavity. 2. The refrigerator according to claim 1, wherein the refrigerating return air duct is also connected to the freezing return air duct, so as to send the air in the refrigerating chamber through the freezing return air duct. back into the cavity. 3 . The refrigerator according to claim 2 , wherein the air duct assembly further comprises a refrigerating air inlet duct, and the refrigerating air inlet duct connects the cavity and the refrigerating air inlet. 4 . 4. The refrigerator according to claim 3, wherein the air duct assembly further comprises a refrigerating air inlet duct, and the refrigerating air inlet duct connects the refrigerating return air duct and the refrigerating air inlet. 5. The refrigerator according to claim 4, characterized in that, the joint between the refrigerating return air duct and the freezing return air duct is a return air place, and the refrigerating air intake duct is connected to the freezing return air duct. The connection of the air duct is the air inlet; along the air supply direction of the refrigerated return air duct, the return air is located downstream of the air inlet. 6 . The refrigerator according to claim 4 , wherein the refrigerating fan is arranged in the refrigerating air intake duct, the refrigerating return air duct, or the refrigerating room. 7 . 7. The refrigerator according to claim 4, wherein the freezing fan is arranged in the freezing air inlet duct or in the freezing chamber. 8. The refrigerator according to any one of claims 1-7, characterized in that, the refrigerating air inlet is provided with a damper for controlling gas flow. 9. The refrigerator according to any one of claims 1-7, characterized in that, the freezing return air outlet is located below the freezing chamber. 10. The refrigerator according to any one of claims 1-7, characterized in that, the number of the freezing air inlet, the freezing return air outlet, the refrigeration air inlet and the refrigeration return air outlet and the number of the freezing fans and the refrigeration fans are at least one.